Titre
Reexamination of the relationship of resting metabolic rate to fat-free mass and to the metabolically active components of fat-free mass in humans.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Weinsier, R.L.
Auteure/Auteur
Schutz, Y.
Auteure/Auteur
Bracco, D.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0002-9165
Statut éditorial
Publié
Date de publication
1992
Volume
55
Numéro
4
Première page
790
Dernière page/numéro d’article
794
Langue
anglais
Résumé
The ratio of resting metabolic rate (RMR) to fat-free mass (FFM) is often used to compare individuals of different body sizes. Because RMR has not been well described over the full range of FFM, a literature review was conducted among groups with a wide range of FFM. It included 31 data sets comprising a total of 1111 subjects: 118 infants and preschoolers, 323 adolescents, and 670 adults; FFM ranged from 2.8 to 106 kg. The relationship of RMR to FFM was found to be nonlinear and average slopes of the regression equations of the three groups differed significantly (P less than 0.0001). For only the youngest group did the intercept approach zero. The lower slopes of RMR on FFM, at higher measures of FFM, corresponded to relatively greater proportions of less metabolically active muscle mass and to lesser proportions of more metabolically active nonmuscle organ mass. Because the contribution of FFM to RMR is not constant, an arithmetic error is introduced when the ratio of RMR to FFM is used. Hence, alternative methods should be used to compare individuals with markedly different FFM.
PID Serval
serval:BIB_FCA6B850B6A5
PMID
Date de création
2008-01-21T12:08:34.076Z
Date de création dans IRIS
2025-05-21T06:17:30Z